SOME LIFE HISTORY COMPARISONS OF SMALL LEAF-GLEANING BIRD SPECIES OF SOUTH-EASTERN AUSTRALIA
| Posted: |
12/09/2021 |
| Author(s): |
J. C. Z. Woinarski |
Breeding biology, longevity and dispersal are compared for six species of thornbills
Acanthiza,
three gerygones
Gerygone, two pardalotes
Pardalotus and the Weebill
Smicrornis from south-eastern
Australia. The pardalotes and two thornbills (Buff-rumped and Chestnut-rumped) lay relatively large
clutches and have the highest nesting success. Incubation and fledging periods are longest for the
pardalotes. The breeding season of the Weebill and both pardalotes are much more extensive than
those of thornbills of gerygones. There is a pronounced peak in the breeding period for all gerygones
(between October and December) and for all thornbills (between August and October). Both pardalotes
and two gerygones show seasonal dispersal which is extensive relative to the marked sedentary
nature typical of thornbills. Longevity in thornbills may be greater than that for pardalotes. These
differences in life history are related to both food availability and nest-site selection.
>> Download Abstract |
File Size: 110 KB
>> Download Complete PDF | File Size: 848 KB
